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Sports·American League

MLB: 2026 American League Champion

Market icon
Sports·American League

MLB: 2026 American League Champion

Seattle Mariners 20%

New York Yankees 19%

Toronto Blue Jays 14%

Texas Rangers 12%

Polymarket

$3,280,425 Vol.

Seattle Mariners 20%

New York Yankees 19%

Toronto Blue Jays 14%

Texas Rangers 12%

Polymarket

$3,280,425 Vol.

Seattle Mariners

$13,722 Vol.

20%

New York Yankees

$22,299 Vol.

19%

Toronto Blue Jays

$112,939 Vol.

14%

Texas Rangers

$6,871 Vol.

12%

Detroit Tigers

$83,552 Vol.

11%

Boston Red Sox

$13,019 Vol.

11%

Baltimore Orioles

$39,137 Vol.

7%

Kansas City Royals

$488,101 Vol.

7%

Cleveland Guardians

$685,934 Vol.

6%

Houston Astros

$752,955 Vol.

6%

Athletics

$124,624 Vol.

2%

Tampa Bay Rays

$334,975 Vol.

1%

Minnesota Twins

$233,191 Vol.

1%

Los Angeles Angels

$289,617 Vol.

1%

Chicago White Sox

$79,488 Vol.

1%

This market will resolve according to the team that wins the 2026 American League Championship Series. If at any point it becomes impossible for a listed team to win the 2026 American League Championship Series per the rules of the MLB (e.g., they are eliminated in the playoffs), the corresponding market will resolve to “No”. If the 2026 American League Championship Series is cancelled, postponed after November 31, 2026, 11:59 PM ET, or there is otherwise no winner declared within that timeframe, this market will resolve to “Other”. The primary resolution source will be official information from Major League Baseball (https://www.mlb.com/); however, a consensus of credible reporting may also be used.Trader consensus on Polymarket gives the Seattle Mariners a narrow 19.5% implied probability to win the 2026 American League pennant, edging the New York Yankees at 18%, amid Week 1 power rankings placing both among MLB's elite despite mixed opening series results—Yankees surging to 5-1 atop AL East standings, Mariners at 3-4 but buoyed by their league-best pitching rotation anchored by Luis Castillo and George Kirby. Toronto Blue Jays' 4-2 start and offseason bolstering fuel 12% support, matching Texas Rangers' healthy roster and AL West viability; Detroit Tigers' young core momentum and Boston Red Sox's revamped rotation add depth, fostering tight odds in a parity-driven AL with multiple wild card threats and no dominant division leader after small-sample early action.

This market will resolve according to the team that wins the 2026 American League Championship Series.

If at any point it becomes impossible for a listed team to win the 2026 American League Championship Series per the rules of the MLB (e.g., they are eliminated in the playoffs), the corresponding market will resolve to “No”.

If the 2026 American League Championship Series is cancelled, postponed after November 31, 2026, 11:59 PM ET, or there is otherwise no winner declared within that timeframe, this market will resolve to “Other”.

The primary resolution source will be official information from Major League Baseball (https://www.mlb.com/); however, a consensus of credible reporting may also be used.
Volume
$3,280,425
End Date
Nov 1, 2026
Market Opened
Feb 19, 2026, 11:07 AM ET

Resolver

0x69c47De9D...
This market will resolve according to the team that wins the 2026 American League Championship Series. If at any point it becomes impossible for a listed team to win the 2026 American League Championship Series per the rules of the MLB (e.g., they are eliminated in the playoffs), the corresponding market will resolve to “No”. If the 2026 American League Championship Series is cancelled, postponed after November 31, 2026, 11:59 PM ET, or there is otherwise no winner declared within that timeframe, this market will resolve to “Other”. The primary resolution source will be official information from Major League Baseball (https://www.mlb.com/); however, a consensus of credible reporting may also be used.
This market will resolve according to the team that wins the 2026 American League Championship Series. If at any point it becomes impossible for a listed team to win the 2026 American League Championship Series per the rules of the MLB (e.g., they are eliminated in the playoffs), the corresponding market will resolve to “No”. If the 2026 American League Championship Series is cancelled, postponed after November 31, 2026, 11:59 PM ET, or there is otherwise no winner declared within that timeframe, this market will resolve to “Other”. The primary resolution source will be official information from Major League Baseball (https://www.mlb.com/); however, a consensus of credible reporting may also be used.Trader consensus on Polymarket gives the Seattle Mariners a narrow 19.5% implied probability to win the 2026 American League pennant, edging the New York Yankees at 18%, amid Week 1 power rankings placing both among MLB's elite despite mixed opening series results—Yankees surging to 5-1 atop AL East standings, Mariners at 3-4 but buoyed by their league-best pitching rotation anchored by Luis Castillo and George Kirby. Toronto Blue Jays' 4-2 start and offseason bolstering fuel 12% support, matching Texas Rangers' healthy roster and AL West viability; Detroit Tigers' young core momentum and Boston Red Sox's revamped rotation add depth, fostering tight odds in a parity-driven AL with multiple wild card threats and no dominant division leader after small-sample early action.

This market will resolve according to the team that wins the 2026 American League Championship Series.

If at any point it becomes impossible for a listed team to win the 2026 American League Championship Series per the rules of the MLB (e.g., they are eliminated in the playoffs), the corresponding market will resolve to “No”.

If the 2026 American League Championship Series is cancelled, postponed after November 31, 2026, 11:59 PM ET, or there is otherwise no winner declared within that timeframe, this market will resolve to “Other”.

The primary resolution source will be official information from Major League Baseball (https://www.mlb.com/); however, a consensus of credible reporting may also be used.
Volume
$3,280,425
End Date
Nov 1, 2026
Market Opened
Feb 19, 2026, 11:07 AM ET

Resolver

0x69c47De9D...
This market will resolve according to the team that wins the 2026 American League Championship Series. If at any point it becomes impossible for a listed team to win the 2026 American League Championship Series per the rules of the MLB (e.g., they are eliminated in the playoffs), the corresponding market will resolve to “No”. If the 2026 American League Championship Series is cancelled, postponed after November 31, 2026, 11:59 PM ET, or there is otherwise no winner declared within that timeframe, this market will resolve to “Other”. The primary resolution source will be official information from Major League Baseball (https://www.mlb.com/); however, a consensus of credible reporting may also be used.

Related

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Will Los Angeles Dodgers win the 2026 National League Championship Series?

44%
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Will the Los Angeles Dodgers win the 2026 World Series?

27%
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Will New York Yankees win the 2026 AL East title?

44%

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Frequently Asked Questions

"MLB: 2026 American League Champion" is a prediction market on Polymarket with 15 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "Seattle Mariners" at 20%, followed by "New York Yankees" at 19%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 20¢ implies that the market collectively assigns a 20% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "MLB: 2026 American League Champion" has generated $3.3 million in total trading volume since the market launched on Feb 19, 2026. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "MLB: 2026 American League Champion," browse the 15 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "MLB: 2026 American League Champion" is "Seattle Mariners" at 20%, meaning the market assigns a 20% chance to that outcome. The next closest outcome is "New York Yankees" at 19%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "MLB: 2026 American League Champion" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.